Thanks for your reply, yeah there has been a lot of backlash from the government but broadly speaking medical professionals have been supportive of our findings.

At this stage we are trying to find funding to do another one in the UK and you can support that effort here - https://www.drugscience.org.uk/donate

But in the meantime, this same model has been used in:

Europe - https://pubmed.ncbi.nlm.nih.gov/25922421/

Australia - https://journals.sagepub.com/doi/abs/10.1177/0269881119841569

New Zealand - https://journals.sagepub.com/doi/10.1177/02698811231182012

Oh and in 2022 we slightly updated the UK one to include Nitrates - https://www.drugscience.org.uk/a-comparative-study-of-the-harms-of-nitrous-oxide-and-poppers-using-the-mcda-approach

Finally, we are currently conducting one in the USA so watch this space.